CN108596127A - A kind of fingerprint identification method, auth method and device and identity veritify machine - Google Patents
A kind of fingerprint identification method, auth method and device and identity veritify machine Download PDFInfo
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- CN108596127A CN108596127A CN201810402303.4A CN201810402303A CN108596127A CN 108596127 A CN108596127 A CN 108596127A CN 201810402303 A CN201810402303 A CN 201810402303A CN 108596127 A CN108596127 A CN 108596127A
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- China
- Prior art keywords
- fingerprint
- finger print
- target object
- print information
- comparison
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
Abstract
The present invention provides a kind of fingerprint identification method, auth method and devices and identity to veritify machine, is related to the technical field of image recognition, this method includes：Obtain the fingerprint quality value of the finger print information of the target object of the fingerprint module acquisition in identity veritification machine；Judge whether finger print information meets comparison and require based on fingerprint quality value, wherein, it compares and require to be determined based on critical mass value, critical mass value is fingerprint comparison result by being unsatisfactory for corresponding critical fingerprint quality value when default required precision presets required precision to satisfaction；It is required if it is judged that finger print information meets to compare, then the fingerprint characteristic data of finger print information and target object is compared, obtain the fingerprint comparison of target object as a result, the present invention alleviate the prior art can not it is harsh to fingerprint collecting degree and fingerprint comparison accuracy rate carry out efficient balance the technical issues of.
Description
Technical field
The present invention relates to the technical fields of image recognition, more particularly, to a kind of fingerprint identification method, auth method
And device and identity veritify machine.
Background technology
With self-service and shared expanding economy, some self-service devices have been introduced into people’s lives.For example, self-service
Ticket taking machine, self-help shopping machine, self-help shopping shop, self-service attendance recorder etc..In existing most of self-service devices, or with scanning
Quick Response Code scans the mode of identity card to complete self-help operation.With the fast development of artificial intelligence technology in recent years, people
Face identification technology is also employed on self-service device that can be self-service.
Face recognition technology mainly veritifies algorithm as self-service device, algorithm model in order to match the configuration of the hardware,
Although accuracy rate of the face recognition technology in terms of detection and comparison has had prodigious guarantee.But due to non-living body
Limitations, the recognition accuracies of self-service device such as the low side readability of limitation and identity document photo still cannot meet some methods
Restrain the required precision of rigorous department.
On this basis, some self-service devices are added to the function of fingerprint recognition.But existing fingerprint identification device
In, if the user fingerprints detected are unsatisfactory for requiring, will be unable to effectively carry out fingerprint recognition.If it is intended to quickly and accurate
True carry out fingerprint recognition then needs user according to more harsh standard acquisition posture to carry out fingerprint collecting.This point is used
Family should have an intimate knowledge on the attendance recorder of fingerprint recognition.For the attendance recorder of existing fingerprint recognition, when user presses lightly on
When fingerprint identification module, prodigious may be that can not successfully identify fingerprint.User is so just needed to increase pressing dynamics or tune
The posture of whole finger, to improve the accuracy rate of identification.If the fingerprint identification technology applied on self-service device, for user
For, it will greatly reduce the experience of user.
Invention content
In view of this, the purpose of the present invention is to provide a kind of fingerprint identification method, auth method and device and bodies
Part veritification machine, with alleviate the prior art can not degree harsh to fingerprint collecting and fingerprint comparison accuracy rate carry out the technology of efficient balance
Problem.
In a first aspect, an embodiment of the present invention provides a kind of fingerprint identification method, it is applied to identity and veritifies machine, including：It obtains
Take the fingerprint quality value of the finger print information for the target object that the fingerprint module in the identity veritification machine acquires；Based on the fingerprint
Mass value judges whether the finger print information meets comparison and require, wherein the comparison require to be determined based on critical mass value
, the critical mass value is fingerprint comparison result by being unsatisfactory for default required precision to when meeting the default required precision pairs
The critical fingerprint quality value answered；If it is judged that the finger print information meets comparison requirement, then by the finger print information and
The fingerprint characteristic data of the target object is compared, and obtains the fingerprint comparison result of the target object.
Further, judge whether the finger print information meets comparison and require to include based on the fingerprint quality value：Judge
Whether the fingerprint quality value is more than or equal to the critical mass value；Wherein, if it is judged that fingerprint quality value be more than or
Person is equal to the critical mass value, it is determined that the finger print information meets comparisons and requires, and by the finger print information and institute
The fingerprint characteristic data for stating target object is compared, and then obtains fingerprint comparison result.
Further, the method further includes：If it is judged that the fingerprint quality value is less than the critical mass value, then
The acquisition parameter of the fingerprint module is adjusted, until the fingerprint quality value of the finger print information is more than or equal to the critical matter
Magnitude, wherein the acquisition parameter includes at least one of：Fingerprint angle, finger close degree refer to heart irrelevance.
Further, the fingerprint characteristic data of the finger print information and the target object is compared, is obtained described
The fingerprint comparison result of target object includes：The certificate information for reading the identity document of the target object, with from the certificate
The fingerprint characteristic data is obtained in information；The similarity for calculating the fingerprint characteristic data and the finger print information obtains
One similarity；If first similarity be more than or equal to the first default similarity, obtain the first fingerprint comparison as a result,
Wherein, the first fingerprint comparison result indicates that the fingerprint characteristic data and finger print information comparison pass through；If described
First similarity is less than the described first default similarity, then obtains the second fingerprint comparison result, wherein second fingerprint comparison
As a result indicate that the fingerprint characteristic data and finger print information comparison do not pass through.
Further, in the finger of the finger print information for the target object for obtaining the fingerprint module acquisition in the identity veritification machine
Before line mass value, the method further includes：After detecting that the fingerprint module is mounted in the identity veritification machine, obtain
Take the supplier's identity code and product ID of the fingerprint module；Supplier's identity code and the product ID is embedding
Enter into USB device registration table, so that the identity veritifies machine and the fingerprint module is identified.
Further, supplier's identity code and the product ID are being embedded in the USB device registration table
In after, the method further includes：The reading instruction of fingerprint quality value is sent to the fingerprint module；If getting the finger
Line module is based on the response message for reading instruction and returning, it is determined that the fingerprint module and the identity veritify machine can be into
Row data communication.
Second aspect, an embodiment of the present invention provides a kind of auth methods, are applied to identity and veritify machine, including：It adopts
Collect the face image of target object, and obtains the finger print information of the target object；Determine the face image and the mesh
The similarity for marking the default face image of object, obtains the second similarity；Pass through the fingerprint recognition side described in any one of the above
Method carries out fingerprint recognition to the finger print information of the target object, obtains fingerprint recognition result；Based on the fingerprint recognition result
The authentication result of the target object is determined with second similarity.
Further, determine that the identity of the target object is tested based on the fingerprint recognition result and second similarity
Demonstrate,proving result includes：The finger print information is verified in fingerprint recognition result expression, and is determining that the similarity is big
In the case of the second default similarity, determine that the authentication result is that the authentication of the target object passes through.
The third aspect, an embodiment of the present invention provides a kind of fingerprint identification devices, are applied to identity and veritify machine, including：It obtains
Unit is taken, the fingerprint quality of the finger print information of the target object for obtaining the acquisition of the fingerprint module in the identity veritification machine
Value；Judging unit judges whether the finger print information meets comparison and require, wherein described for being based on the fingerprint quality value
It compares and require to be determined based on critical mass value, the critical mass value is that fingerprint comparison result is wanted by being unsatisfactory for default precision
Seek corresponding critical fingerprint quality value when meeting the default required precision；Comparing unit, for judging the fingerprint
In the case that information meets the comparison requirement, the fingerprint characteristic data of the finger print information and the target object is compared
It is right, obtain the fingerprint comparison result of the target object.
Fourth aspect, an embodiment of the present invention provides a kind of authentication means, are applied to identity and veritify machine, including：It adopts
Collect unit, the face image for acquiring target object, and obtains the finger print information of the target object；First determines list
Member, the similarity for determining the face image and the default face image of the target object, obtains the second similarity；Know
Other unit, for carrying out fingerprint to the finger print information of the target object by the fingerprint identification method described in any one of the above
Identification, obtains fingerprint recognition result；Second determination unit, for true based on the fingerprint recognition result and second similarity
The authentication result of the fixed target object.
5th aspect, an embodiment of the present invention provides a kind of identity to veritify machine, including：Photographic device, fingerprint module, storage
Device, processor and it is stored in the computer program that can be run on the memory and on the processor, the processor is held
Method described in any one of the above embodiments is realized when the row computer program；The photographic device is used to acquire the face of target object
Image；The fingerprint module is used to acquire the finger print information of the target object, and determines the fingerprint quality of the finger print information
Value.
6th aspect, an embodiment of the present invention provides a kind of computer storage medias, are stored thereon with computer program, institute
It states when computer runs the computer program and executes method described above.
In embodiments of the present invention, first, the fingerprint of the target object of the fingerprint module acquisition in identity veritification machine is obtained
The fingerprint quality value of information；Then, judge whether finger print information meets comparison and require based on fingerprint quality value, wherein comparison is wanted
Seeking Truth determines that critical mass value is that fingerprint comparison result is pre- to meeting by being unsatisfactory for default required precision based on critical mass value
If corresponding critical fingerprint quality value when required precision；It is required if it is judged that finger print information meets to compare, then by finger print information
It is compared with the fingerprint characteristic data of target object, obtains the fingerprint comparison result of target object.
In view of in the prior art can not it is harsh to fingerprint collecting degree and fingerprint comparison accuracy rate carry out efficient balance skill
Art problem by way of determining that comparison requires based on critical mass value, can reduce fingerprint collecting in the present embodiment
Harsh degree, while fingerprint comparison accuracy rate can also be improved.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic diagram of a kind of electronic equipment according to the ... of the embodiment of the present invention；
Fig. 2 is a kind of flow chart of fingerprint identification method according to the ... of the embodiment of the present invention；
Fig. 3 is the broken line relational graph of a kind of fingerprint quality value and fingerprint comparison accuracy rate according to the ... of the embodiment of the present invention；
Fig. 4 is a kind of flow chart of optionally fingerprint identification method according to the ... of the embodiment of the present invention；
Fig. 5 is the flow chart of another optionally fingerprint identification method according to the ... of the embodiment of the present invention；
Fig. 6 is the flow chart of another optionally fingerprint identification method according to the ... of the embodiment of the present invention
Fig. 7 is a kind of flow chart of auth method according to the ... of the embodiment of the present invention；
Fig. 8 is a kind of schematic diagram of fingerprint identification device according to the ... of the embodiment of the present invention；
Fig. 9 is a kind of schematic diagram of authentication according to the ... of the embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
First, the fingerprint identification method or auth method for realizing the embodiment of the present invention are described referring to Fig.1
Exemplary electronic device 100.
As shown in Figure 1, electronic equipment 100 include one or more processing equipments 102, one or more storage devices 104,
Input unit 106, output device 108, photographic device 110 and fingerprint module 112, these components by bus system 114 and/or
Bindiny mechanism's (not shown) interconnection of other forms.It should be noted that the component and structure of electronic equipment 100 shown in FIG. 1 are
Illustrative, and not restrictive, as needed, the electronic equipment can also have other assemblies and structure.
The processing equipment 102 can be central processing unit (CPU) or be held with data-handling capacity and/or instruction
The processing unit of the other forms of row ability, and other components in the electronic equipment 100 can be controlled to execute expectation
Function.
The storage device 104 may include one or more computer program products, and the computer program product can
To include various forms of computer readable storage mediums, such as volatile memory and/or nonvolatile memory.It is described easy
The property lost memory is such as may include random access memory (RAM) and/or cache memory (cache).It is described non-
Volatile memory is such as may include read-only memory (ROM), hard disk, flash memory.In the computer readable storage medium
On can store one or more computer program instructions, processing equipment 102 can run described program instruction, to realize hereafter
The client functionality (realized by processor) in the embodiment of the present invention and/or other desired functions.Described
Can also store various application programs and various data in computer readable storage medium, for example, the application program use and/
Or the various data etc. generated.
The input unit 106 can be the device that user is used for inputting instruction, and may include keyboard, mouse, wheat
One or more of gram wind and touch screen etc..
The output device 108 can export various information (for example, image or sound) to external (for example, user), and
And may include one or more of display, loud speaker etc..
The photographic device 110 can shoot the desired image of user (such as photo, video etc.), and will be captured
Image is stored in the storage device 104 so that other components use；
The fingerprint module 112 can acquire the finger print information of user.
Illustratively, for realizing the example of fingerprint identification method according to the ... of the embodiment of the present invention or auth method
Electronic equipment may be implemented as in the terminals such as smart mobile phone, tablet computer, authentication machine.
According to embodiments of the present invention, a kind of embodiment of fingerprint identification method is provided, it should be noted that in attached drawing
The step of flow illustrates can execute in the computer system of such as a group of computer-executable instructions, although also,
Logical order is shown in flow chart, but in some cases, it can be to execute shown different from sequence herein or retouch
The step of stating.
Fig. 2 is a kind of flow chart of fingerprint identification method according to the ... of the embodiment of the present invention, and this method is veritified applied to identity
Machine, as shown in Fig. 2, this method comprises the following steps：
Step S202 obtains the fingerprint of the finger print information of the target object of the fingerprint module acquisition in the identity veritification machine
Mass value；
In the present embodiment, fingerprint module is also known as fingerprint identification module, for the device being pre-installed in identity veritification machine.
Target object can be any one biology for carrying fingerprint, for example, the mankind and primate etc. carry fingerprint, and energy
Enough biologies that the identity of the biology is identified based on fingerprint.
Step S204 judges whether the finger print information meets comparison and require, wherein described based on the fingerprint quality value
It compares and require to be determined based on critical mass value, the critical mass value is that fingerprint comparison result is wanted by being unsatisfactory for default precision
Seek corresponding critical fingerprint quality value when meeting the default required precision；
Step S206, if it is judged that the finger print information meets the comparison requirement, then by the finger print information and institute
The fingerprint characteristic data for stating target object is compared, and obtains the fingerprint comparison result of the target object.
Fingerprint module will be influenced when carrying out fingerprint collecting by multi-parameter, for example, fingerprint angle, finger are close to journey
Degree, refers to heart irrelevance etc..These parameters can be embodied by fingerprint quality.When fingerprint module carries out fingerprint collecting,
The mode of fingerprint collecting gets over specification, and harsh degree is higher, and user experience is just lower therewith.But fingerprint quality value is again apparent to close
It is the fingerprint comparison standard of the fingerprint characteristic data of entrained fingerprint into current finger print and identity document (for example, China second-generation identity card)
True rate.Wherein, fingerprint quality value is higher, and fingerprint comparison accuracy rate is also higher.Identity document includes the affiliated object of the certificate
Fingerprint, fingerprint characteristic data is the data extracted from fingerprint, which can be the bifurcated of fingerprint lines, terminate or beat
The information such as the coordinate position at circle.However, fingerprint quality value is higher, also higher for the harsh degree of fingerprint collecting, this is with regard to tight
User experience is affected again.
In the present embodiment, it is based on the problem, it, can be in fingerprint by way of determining that comparison requires critical mass value
In the case of comparing the default required precision of accuracy rate (namely fingerprint comparison result) satisfaction so that fingerprint quality value reduces, to,
The harsh degree of fingerprint collecting is reduced, and then efficient balance is carried out to the harsh degree of fingerprint collecting and fingerprint comparison accuracy rate, with slow
The technical issues of solution harsh to fingerprint collecting can not be spent in the prior art and fingerprint comparison accuracy rate carries out efficient balance.
In the following embodiments, the selection of critical mass value will be introduced and compare the determination of requirement.
In embodiments of the present invention, first, the fingerprint of the target object of the fingerprint module acquisition in identity veritification machine is obtained
The fingerprint quality value of information；Then, judge whether finger print information meets comparison and require based on fingerprint quality value, wherein comparison is wanted
Seeking Truth determines that critical mass value is that fingerprint comparison result is pre- to meeting by being unsatisfactory for default required precision based on critical mass value
If corresponding critical fingerprint quality value when required precision；It is required if it is judged that finger print information meets to compare, then by finger print information
It is compared with the fingerprint characteristic data of target object, obtains the fingerprint comparison result of target object.
In view of in the prior art can not it is harsh to fingerprint collecting degree and fingerprint comparison accuracy rate carry out efficient balance skill
Art problem by way of determining that comparison requires based on critical mass value, can reduce fingerprint collecting in the present embodiment
Harsh degree, while fingerprint comparison accuracy rate can also be improved.
By foregoing description it is found that fingerprint module is when carrying out fingerprint collecting, will be influenced by multi-parameter, for example, referring to
Line angle, finger close degree refer to heart irrelevance etc..In order to work out the accuracy rate that fingerprint collecting mass value is veritified with fingerprint
Correspondence, inventor carried out nearly 500 simulated experiments, got the data of experiment, has done accurately data analysis, portion
Point the experimental data are shown in the following table shown in 1.Finally, in conjunction with the practical problem of acquisition, rational critical mass value has been drafted.By drafting
The mode of critical mass value both ensure that fingerprint comparison accuracy rate, while also ensure the tolerance of fingerprint collecting (that is, above-mentioned
Harsh degree) so that under the premise of ensureing to preset required precision, optimize user experience.
Table 1
It is that the classification of some actual conditions and the correspondence of fingerprint quality value based on fingerprint collecting are surveyed shown in above-mentioned table 1
Try data.As can be seen that fingerprint angle, the front for finger degree of being close to, referring to heart irrelevance, all influencing fingerprint from above-mentioned table 1
Acquisition, these factors are all integrated by fingerprint collecting mass value in fact to be embodied.So to study the actual acquisition degree and ratio of fingerprint
It is exactly the correspondence for studying fingerprint quality value and fingerprint comparison accurate rate in fact to the relationship of accurate rate.Inventor have passed through
500 times or so tests grind the fingerprint quality value in the data repeatedly tested with fingerprint comparison accuracy rate as one-to-one
Study carefully object, make corresponding line chart, line chart is as shown in Figure 3.
It can be found that when fingerprint quality value is close to 65 from Fig. 3, fingerprint comparison accuracy rate is already close to 100%.
At this moment, then make great efforts to promote fingerprint quality value, it is necessary to the acquisition operations of more specification, it will not be accurate to fingerprint comparison in this way
Rate generates considerable promotion, can improve the harsh degree of acquisition instead, reduces user experience.So in order to reasonably ensure to preset
Required precision, between can critical mass value being scheduled on 65-68, concrete numerical value can be set according to actual needs.
By foregoing description it is found that in the present embodiment, by way of taking critical mass value, both having reached fingerprint ratio
Accuracy rate is met and presets required precision, in turn ensures the tolerance (namely harsh degree of fingerprint collecting) of practical operation.
Fig. 4 is the flow chart of another fingerprint identification method according to the ... of the embodiment of the present invention.In another embodiment, should
Method includes the following steps：
Step S401 obtains the fingerprint of the finger print information of the target object of the fingerprint module acquisition in the identity veritification machine
Mass value；
Step S402, judges whether the fingerprint quality value is more than or equal to the critical mass value；Wherein, if sentenced
Breaking is, it is determined that goes out the finger print information and meets the comparison requirement, executes step S403 at this time；If it is judged that it is no, then
Execute step S404；
The fingerprint characteristic data of the finger print information and the target object is compared, and then obtains by step S403
Fingerprint comparison result；
Step S404 adjusts the acquisition parameter of the fingerprint module, until the fingerprint quality value of the finger print information is more than
Or it is equal to the critical mass value, wherein the acquisition parameter includes at least one of：Fingerprint angle, finger are close to journey
Degree, refers to heart irrelevance.
In this example, it is assumed that critical mass value is 65.First, the mesh of fingerprint module acquisition in identity veritification machine is obtained
The fingerprint quality value of the finger print information of object is marked, for example, the fingerprint quality value got is 66.74.Then, judge the fingerprint matter
Whether magnitude is more than or equal to critical mass value.By judge it is found that fingerprint quality value as 66.74 be more than or equal to it is critical
Mass value 65.At this time, it is determined that the fingerprint quality value of the finger print information of the target object got, which meets to compare, to be required.It connects down
Come, the fingerprint characteristic data of the finger print information of target object and target object is compared, and then obtain fingerprint comparison result.
If it is judged that the fingerprint quality value is less than critical mass value 65, then the acquisition parameter of fingerprint module is adjusted, until
The fingerprint quality value of the finger print information be more than or equal to the critical mass value, wherein acquisition parameter include it is following at least
One of：Fingerprint angle, finger close degree refer to heart irrelevance.
During adjusting the acquisition parameter of fingerprint module, fingerprint module is being acquired always, when fingerprint module is adopted
When being more than or equal to critical mass value of the finger print information collected then triggers the fingerprint characteristic of finger print information and target object
The operation that data are compared.If after the acquisition parameter for adjusting fingerprint module, the fingerprint quality value of acquisition is still less than 65,
The acquisition parameter of adjustment fingerprint module will then be continued, until fingerprint quality value is more than or equal to critical mass value.
In the present embodiment, it can also be required by following manner to judge whether finger print information meets comparison：
First, the fingerprint quality value of the finger print information of the target object of the fingerprint module acquisition in identity veritification machine is obtained；
Then, judge fingerprint quality value whether in default interval, wherein default interval is to be determined based on critical mass value
's；For example, default interval can be arranged being：[A-a, A+a], A are critical mass value, and a is one and is more than or equal to zero, and small
In the numerical value equal to 1, for example, a=0.5.In the present embodiment, the value of a, the present embodiment can be set according to actual needs
It is not especially limited.
Wherein, if it is judged that being, it is determined that go out finger print information and meet to compare to require, by finger print information and target object
Fingerprint characteristic data is compared, and then obtains fingerprint comparison result；If it is judged that it is no, then adjust the acquisition ginseng of fingerprint module
Number, until finger print information fingerprint quality value be more than or equal to critical mass value, wherein acquisition parameter include it is following at least it
One：Fingerprint angle, finger close degree refer to heart irrelevance.
In this example, it is assumed that critical mass value is 65, a 0.5, then default interval is [65-0.5=
64.5,65+0.5=65.5].
Specifically, the fingerprint quality value of the finger print information of the target object of fingerprint module acquisition in identity veritification machine is obtained,
For example, the fingerprint quality value got is 64.7.Then, judge the fingerprint quality value whether default interval [64.5,
65.5] in.By judging it is found that fingerprint quality value is interior in default interval [64.5,65.5] as 64.7.At this time, it is determined that
The fingerprint quality value of the finger print information of the target object got, which meets to compare, to be required.Next, the fingerprint of target object is believed
The fingerprint characteristic data of breath and target object is compared, and then obtains fingerprint comparison result.
If it is judged that the fingerprint quality value then adjusts fingerprint module not in default interval [64.5,65.5]
Acquisition parameter, until the fingerprint quality value of finger print information is more than or equal to critical mass value, wherein acquisition parameter includes following
At least one：Fingerprint angle, finger close degree refer to heart irrelevance.
During adjusting the acquisition parameter of fingerprint module, fingerprint module is being acquired always, when fingerprint module is adopted
When being more than or equal to critical mass value of the finger print information collected then triggers the fingerprint characteristic of finger print information and target object
The operation that data are compared.If after the acquisition parameter for adjusting fingerprint module, the fingerprint quality value of acquisition is not still pre-
If interval [64.5,65.5] in, then will continue adjust fingerprint module acquisition parameter, until fingerprint quality value be more than or
Equal to critical mass value.
In the present embodiment, by way of taking critical mass value, it is default fingerprint comparison accuracy rate satisfaction had both been reached
Required precision in turn ensures the tolerance (namely harsh degree of fingerprint collecting) of practical operation.Since fingerprint module is transported always
Turn, acquires always, it, will be autonomous when the fingerprint quality value of target object does not reach threshold value (that is, critical mass value) of setting
Adjusting acquisition dynamics and position；When reaching threshold value (that is, critical mass value) of setting, take sample (that is, fingerprint immediately
Information), it completes to compare, had not only reduced the severity of operation, but also effectively prevent the mortality of fingerprint comparison.
Fig. 5 is the flow chart of another fingerprint identification method according to the ... of the embodiment of the present invention.In another embodiment, should
Method includes the following steps：
Step S501 obtains the fingerprint of the finger print information of the target object of the fingerprint module acquisition in the identity veritification machine
Mass value；
Step S502 judges whether the finger print information meets comparison and require, wherein described based on the fingerprint quality value
It compares and require to be determined based on critical mass value, the critical mass value is that fingerprint comparison result is wanted by being unsatisfactory for default precision
Seek corresponding critical fingerprint quality value when meeting the default required precision；If it is judged that meeting the comparison requirement, then
Execute step S503；It is no to then follow the steps S507；
Step S503 reads the certificate information of the identity document of the target object, to be obtained from the certificate information
The fingerprint characteristic data；
Step S504 calculates the similarity of the fingerprint characteristic data and the finger print information, obtains the first similarity；
Step S505 obtains the first fingerprint if first similarity is more than or equal to the first default similarity
Comparison result, wherein the first fingerprint comparison result indicates that the fingerprint characteristic data and finger print information comparison pass through；
Step S506 obtains the second fingerprint comparison if first similarity is less than the described first default similarity
As a result, wherein the second fingerprint comparison result indicates that the fingerprint characteristic data and finger print information comparison do not pass through；
Step S507, adjusts the acquisition parameter of the fingerprint module, and returns to step S501, until the fingerprint is believed
The fingerprint quality value of breath is more than or equal to the critical mass value, wherein the acquisition parameter includes at least one of：Refer to
Line angle, finger close degree refer to heart irrelevance.
In the present embodiment, first, the finger print information of the target object of the fingerprint module acquisition in identity veritification machine is obtained
Fingerprint quality value, for example, the fingerprint quality value got be 66.74.Then, judge that fingerprint is believed based on the fingerprint quality value
Whether breath, which meets comparison, requires.It should be noted that can judge to refer to by way of described in embodiment shown in Fig. 4
Whether line information, which meets comparison, requires, and is no longer described in detail herein.
It is required if it is judged that finger print information meets to compare, then reads the certificate information of the identity document of target object, with
Fingerprint characteristic data is obtained from certificate information.Under normal circumstances, all can include holder or accredited object in certificate information
Finger print information.After getting fingerprint characteristic data, so that it may to calculate the phase between fingerprint characteristic data and finger print information
Like degree (that is, above-mentioned first similarity).If the first similarity is more than or equal to the first default similarity, it is determined that fingerprint is special
Sign data and finger print information comparison pass through.If the first similarity is less than the first default similarity, it is determined that fingerprint characteristic data
Do not pass through with finger print information comparison.
In another embodiment, as shown in fig. 6, in the target for obtaining the fingerprint module acquisition in the identity veritification machine
Before the fingerprint quality value of the finger print information of object, this method further includes following steps：
Step S601 obtains the fingerprint after detecting that the fingerprint module is mounted in the identity veritification machine
The supplier's identity code and product ID of module；
Supplier's identity code and the product ID are embedded in USB device registration table by step S602, so that
The identity veritifies machine and the fingerprint module is identified.
It should be noted that wanting to realize the function described in above-described embodiment, it is necessary first in identity veritification machine
Increase the hardware device of USB fingerprint modules, but the hardware device for increasing USB fingerprint modules just needs corresponding device drives.
If the system that identity veritifies machine is Android system, integration module drives in Android system, passes through debugging
The hardware device of USB fingerprint modules can be driven by integration module driving in the system of Android.Then, it is inciting somebody to action
After the hardware device of USB fingerprint modules is mounted in the identity veritification machine, identity, which is veritified machine and can be debugged, to be found USB and refers to
The vendorId (supplier's identity code) and productId (product ID) of the hardware device of line module, and trade mark will be supplied
Will code and product ID are embedded into the USB device registration table of system so that identity, which veritifies machine, can identify the USB fingerprints
The hardware device of module.
As shown in fig. 6, supplier's identity code and the product ID are embedded in the USB device registration table
In after, the method further includes following steps：
Step S603 sends the reading instruction that fingerprint recognition sends fingerprint quality value to the fingerprint module；
Step S604, if getting the fingerprint module based on the response message for reading instruction and returning, it is determined that
The fingerprint module and the identity veritify machine can be into row data communication.
After identity veritification machine can identify the hardware device of the USB fingerprint modules, so that it may to verify the USB fingerprints
Whether can be normally carried out and communicate between the hardware dress and the processor of identity veritification machine of module.
Specifically, the processor of identity veritification machine can send the reading instruction of fingerprint quality value to fingerprint module；If
Fingerprint module is got based on the response message for reading instruction and returning, it is determined that fingerprint module and the identity veritify machine can be into
Row data communication.At this point, the work(described in above-described embodiment can be realized by the hardware device of the USB fingerprint modules
It can.
According to embodiments of the present invention, a kind of embodiment of auth method is additionally provided.
Fig. 7 is a kind of flow chart of auth method according to the ... of the embodiment of the present invention, and this method is veritified applied to identity
Machine, as shown in fig. 7, this method comprises the following steps：
Step S702 acquires the face image of target object, and obtains the finger print information of the target object；
Step S704 determines the similarity of the default face image of the face image and the target object, obtains the
Two similarities；
Step S706, by the fingerprint identification method described in any one embodiment in above method embodiment to the mesh
The finger print information for marking object carries out fingerprint recognition, obtains fingerprint recognition result；
Step S708 determines that the identity of the target object is tested based on the fingerprint recognition result and second similarity
Demonstrate,prove result.
Optionally, the authentication of the target object is determined based on the fingerprint recognition result and second similarity
As a result include：
The finger print information is verified in fingerprint recognition result expression, and is determining that the similarity is more than the
In the case of two default similarities, determine that the authentication result is that the authentication of the target object passes through.
In the present embodiment, the face image of target object is acquired first, and obtains the finger print information of target object；So
Afterwards, it determines the similarity of the default face image of face image and target object, and the finger print information of target object is carried out
Fingerprint recognition obtains fingerprint recognition result；Finally, the authentication of target object is determined based on fingerprint recognition result and similarity
As a result.
In the present embodiment, recognition of face and the double-deck verification of fingerprint recognition are set, the accurate of testimony of a witness veritification can be solved
Rate problem, while veritifying machine for identity and increasing other basic functions again, embody intrepid, accurate, quick design concept.Into
One step, it is contemplated that in the prior art can not degree harsh to fingerprint collecting and fingerprint comparison accuracy rate carry out the technology of efficient balance
Problem by way of determining that comparison requires based on critical mass value, can reduce the tight of fingerprint collecting in the present embodiment
Severe degree, while fingerprint comparison accuracy rate can also be improved.
The embodiment of the present invention additionally provides a kind of fingerprint identification device, which is mainly used for executing the present invention
The fingerprint identification method that embodiment the above is provided below does specifically fingerprint identification device provided in an embodiment of the present invention
It introduces.
Fig. 8 is a kind of schematic diagram of fingerprint identification device according to the ... of the embodiment of the present invention, as shown in figure 8, the fingerprint recognition
Device mainly include acquiring unit 81, judging unit 82 and comparing unit 83, wherein：
Acquiring unit 81, the finger print information of the target object for obtaining the acquisition of the fingerprint module in the identity veritification machine
Fingerprint quality value；
Judging unit 82 judges whether the finger print information meets comparison and require for being based on the fingerprint quality value,
In, the comparison requirement is determined based on critical mass value, and the critical mass value is that fingerprint comparison result is pre- by being unsatisfactory for
If required precision is to corresponding critical fingerprint quality value when meeting the default required precision；
Comparing unit 83, in the case where judging that the finger print information meets the comparison and requires, by the finger
The fingerprint characteristic data of line information and the target object is compared, and obtains the fingerprint comparison result of the target object.
In embodiments of the present invention, first, the fingerprint of the target object of the fingerprint module acquisition in identity veritification machine is obtained
The fingerprint quality value of information；Then, judge whether finger print information meets comparison and require based on fingerprint quality value, wherein comparison is wanted
Seeking Truth determines that critical mass value is that fingerprint comparison result is pre- to meeting by being unsatisfactory for default required precision based on critical mass value
If corresponding critical fingerprint quality value when required precision；It is required if it is judged that finger print information meets to compare, then by finger print information
It is compared with the fingerprint characteristic data of target object, obtains the fingerprint comparison result of target object.
In view of in the prior art can not it is harsh to fingerprint collecting degree and fingerprint comparison accuracy rate carry out efficient balance skill
Art problem by way of determining that comparison requires based on critical mass value, can reduce fingerprint collecting in the present embodiment
Harsh degree, while fingerprint comparison accuracy rate can also be improved.
Optionally, judging unit 82 is used for：Judge whether the fingerprint quality value is more than or equal to the critical mass
Value；Wherein, if it is judged that fingerprint quality value is more than or equal to the critical mass value, it is determined that the finger print information meets
The comparison requirement, and the fingerprint characteristic data of the finger print information and the target object is compared, and then referred to
Line comparison result.
Optionally, if it is determined that unit 82 judges that the fingerprint quality value is less than the critical mass value, then institute is adjusted
The acquisition parameter of fingerprint module is stated, then adjusts the acquisition parameter of the fingerprint module by adjusting unit, until the fingerprint is believed
The fingerprint quality value of breath is more than or equal to the critical mass value, wherein the acquisition parameter includes at least one of：Refer to
Line angle, finger close degree refer to heart irrelevance.
Optionally, comparing unit 83 is used for：The certificate information for reading the identity document of the target object, with from the card
The fingerprint characteristic data is obtained in part information；The similarity for calculating the fingerprint characteristic data and the finger print information, obtains
First similarity；If first similarity is more than or equal to the first default similarity, the first fingerprint comparison knot is obtained
Fruit, wherein the first fingerprint comparison result indicates that the fingerprint characteristic data and finger print information comparison pass through；If institute
It states the first similarity and is less than the described first default similarity, then obtain the second fingerprint comparison result, wherein the second fingerprint ratio
The fingerprint characteristic data and finger print information comparison, which do not pass through, to be indicated to result.
Optionally, which is additionally operable to：In the target object for obtaining the fingerprint module acquisition in the identity veritification machine
Before the fingerprint quality value of finger print information, and after detecting that the fingerprint module is mounted in the identity veritification machine, obtain
Take the supplier's identity code and product ID of the fingerprint module；Supplier's identity code and the product ID is embedding
Enter into USB device registration table, so that the identity veritifies machine and the fingerprint module is identified.
Optionally, which is additionally operable to：Supplier's identity code and the product ID are being embedded in the USB
After in device registry, the reading instruction of fingerprint quality value is sent to the fingerprint module；If getting the fingerprint mould
Group is based on the response message for reading instruction and returning, it is determined that the fingerprint module and identity veritification machine can be into line numbers
According to communication.
The embodiment of the present invention additionally provides a kind of authentication means, which is mainly used for executing the present invention
The auth method that embodiment the above is provided below does specifically authentication means provided in an embodiment of the present invention
It introduces.
Fig. 9 is a kind of schematic diagram of authentication according to the ... of the embodiment of the present invention, as shown in figure 9, the authentication is main
Including collecting unit 91, the first determination unit 92, recognition unit 93 and the second determination unit 94, wherein：
Collecting unit 91, the face image for acquiring target object, and obtain the finger print information of the target object；
First determination unit 92, for determining that the face image is similar to the default face image of the target object
Degree, obtains the second similarity；
Recognition unit 93, for the fingerprint by the fingerprint identification method described in any one of the above to the target object
Information carries out fingerprint recognition, obtains fingerprint recognition result；
Second determination unit 94, for determining the target pair based on the fingerprint recognition result and second similarity
The authentication result of elephant.
In the present embodiment, the face image of target object is acquired first, and obtains the finger print information of target object；So
Afterwards, it determines the similarity of the default face image of face image and target object, and the finger print information of target object is carried out
Fingerprint recognition obtains fingerprint recognition result；Finally, the authentication of target object is determined based on fingerprint recognition result and similarity
As a result.
In the present embodiment, recognition of face and the double-deck verification of fingerprint recognition are set, the accurate of testimony of a witness veritification can be solved
Rate problem, while veritifying machine for identity and increasing other basic functions again, embody intrepid, accurate, quick design concept.Into
One step, it is contemplated that in the prior art can not degree harsh to fingerprint collecting and fingerprint comparison accuracy rate carry out the technology of efficient balance
Problem by way of determining that comparison requires based on critical mass value, can reduce the tight of fingerprint collecting in the present embodiment
Severe degree, while fingerprint comparison accuracy rate can also be improved.
Optionally, the second determination unit 94 is used for：It indicates to verify the finger print information in the fingerprint recognition result logical
It crosses, and in the case where determining that the similarity is more than the second default similarity, determines that the authentication result is the mesh
The authentication of mark object passes through.
The technique effect and preceding method embodiment phase of the device that the embodiment of the present invention is provided, realization principle and generation
Together, to briefly describe, device embodiment part does not refer to place, can refer to corresponding contents in preceding method embodiment.
In another embodiment of the present invention, a kind of identity veritification machine is additionally provided, including：Photographic device, fingerprint mould
Group, memory, processor and it is stored in the computer program that can be run on the memory and on the processor, the place
Reason device realizes the method described in any of the above-described embodiment of the method when executing the computer program；The photographic device is for adopting
Collect the face image of target object；The fingerprint module is used to acquire the finger print information of the target object, and determines the finger
The fingerprint quality value of line information.
In another embodiment of the present invention, a kind of computer storage media is additionally provided, computer is stored thereon with
Program, the computer execute the method described in any of the above-described embodiment of the method when running the computer program.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer read/write memory medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of step of method.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
Store the medium of program code.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. a kind of fingerprint identification method, which is characterized in that it is applied to identity and veritifies machine, including：
Obtain the fingerprint quality value of the finger print information of the target object of the fingerprint module acquisition in the identity veritification machine；
Judge whether the finger print information meets comparison and require based on the fingerprint quality value, wherein the comparison requirement is base
It is determined in critical mass value, the critical mass value is fingerprint comparison result by being unsatisfactory for described in default required precision to satisfaction
Corresponding critical fingerprint quality value when default required precision；
If it is judged that the finger print information meets the comparison requirement, then by the finger of the finger print information and the target object
Line characteristic is compared, and obtains the fingerprint comparison result of the target object.
2. according to the method described in claim 1, it is characterized in that, judging that the finger print information is based on the fingerprint quality value
No satisfaction comparison requires to include：
Judge whether the fingerprint quality value is more than or equal to the critical mass value；
Wherein, if it is judged that fingerprint quality value is more than or equal to the critical mass value, it is determined that the finger print information is full
The foot comparison requirement, and the fingerprint characteristic data of the finger print information and the target object is compared, and then obtain
The fingerprint comparison result.
3. according to the method described in claim 2, it is characterized in that, the method further includes：
If it is judged that the fingerprint quality value is less than the critical mass value, then the acquisition parameter of the fingerprint module is adjusted,
Until the fingerprint quality value of the finger print information is more than or equal to the critical mass value, wherein the acquisition parameter includes
At least one of：Fingerprint angle, finger close degree refer to heart irrelevance.
4. according to the method described in claim 1, it is characterized in that, by the fingerprint of the finger print information and target object spy
Sign data are compared, and the fingerprint comparison result for obtaining the target object includes：
The certificate information for reading the identity document of the target object, to obtain the fingerprint characteristic number from the certificate information
According to；
The similarity for calculating the fingerprint characteristic data and the finger print information obtains the first similarity；
If first similarity is more than or equal to the first default similarity, the first fingerprint comparison result is obtained, wherein
The first fingerprint comparison result indicates that the fingerprint characteristic data and finger print information comparison pass through；
If first similarity is less than the described first default similarity, the second fingerprint comparison result is obtained, wherein described
Second fingerprint comparison result indicates that the fingerprint characteristic data and finger print information comparison do not pass through.
5. according to the method described in claim 1, it is characterized in that, obtaining the fingerprint module acquisition in the identity veritification machine
Target object finger print information fingerprint quality value before, the method further includes：
After detecting that the fingerprint module is mounted in the identity veritification machine, the supply trade mark of the fingerprint module is obtained
Will code and product ID；
Supplier's identity code and the product ID are embedded in USB device registration table, so that the identity is veritified
The fingerprint module is identified in machine.
6. according to the method described in claim 5, it is characterized in that, by supplier's identity code and the product ID
After being embedded in the USB device registration table, the method further includes：
The reading instruction of fingerprint quality value is sent to the fingerprint module；
If get the fingerprint module based on it is described read instruction return response message, it is determined that the fingerprint module and
The identity veritifies machine can be into row data communication.
7. a kind of auth method, which is characterized in that it is applied to identity and veritifies machine, including：
The face image of target object is acquired, and obtains the finger print information of the target object；
The similarity for determining the face image and the default face image of the target object, obtains the second similarity；
By the fingerprint identification method described in any one in the claims 1 to 6 to the finger print information of the target object
Fingerprint recognition is carried out, fingerprint recognition result is obtained；
The authentication result of the target object is determined based on the fingerprint recognition result and second similarity.
8. the method according to the description of claim 7 is characterized in that being based on the fingerprint recognition result and second similarity
Determine that the authentication result of the target object includes：
The finger print information is verified in fingerprint recognition result expression, and is determining that it is pre- that the similarity is more than second
If in the case of similarity, determining that the authentication result is that the authentication of the target object passes through.
9. a kind of fingerprint identification device, which is characterized in that it is applied to identity and veritifies machine, including：
Acquiring unit, the fingerprint of the finger print information of the target object for obtaining the acquisition of the fingerprint module in the identity veritification machine
Mass value；
Judging unit judges whether the finger print information meets comparison and require, wherein described for being based on the fingerprint quality value
It compares and require to be determined based on critical mass value, the critical mass value is that fingerprint comparison result is wanted by being unsatisfactory for default precision
Seek corresponding critical fingerprint quality value when meeting the default required precision；
Comparing unit, in the case where judging that the finger print information meets the comparison and requires, by the finger print information
It is compared with the fingerprint characteristic data of the target object, obtains the fingerprint comparison result of the target object.
10. a kind of authentication means, which is characterized in that it is applied to identity and veritifies machine, including：
Collecting unit, the face image for acquiring target object, and obtain the finger print information of the target object；
First determination unit, the similarity for determining the face image and the default face image of the target object, obtains
To the second similarity；
Recognition unit, for passing through the fingerprint identification method described in any one in the claims 1 to 6 to the target pair
The finger print information of elephant carries out fingerprint recognition, obtains fingerprint recognition result；
Second determination unit, the body for determining the target object based on the fingerprint recognition result and second similarity
Part verification result.
11. a kind of identity veritifies machine, which is characterized in that including：It photographic device, fingerprint module, memory, processor and is stored in
On the memory and the computer program that can run on the processor, when the processor executes the computer program
Any the method in the claims 1 to 6 is realized, alternatively, the method described in claim 7 or 8；
The photographic device is used to acquire the face image of target object；
The fingerprint module is used to acquire the finger print information of the target object, and determines the fingerprint quality of the finger print information
Value.
12. a kind of computer storage media, which is characterized in that computer program is stored thereon with, described in the computer operation
Any the method in the claims 1 to 6 is executed when computer program, alternatively, the method described in claim 7 or 8.
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